Kingpin gage



FIG. 1 is a top plan view of a kingpin gage showing my new design;

FIG. 2 is a front edge elevational view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a rear edge elevational view thereof. 

The ornamental design for a kingpin gage, substantially as shown and described. 